High water content material based on ba-bearing sulphoaluminate cement

Abstract

A new type of high water content material which is made up of two pastes is prepared, one is made from line and gypsum, and another is based on Ba-bearing sulphoaluminate cement. It has excellent properties such as slow single paste solidifing, fast double pates solidifing, fast coagulating and hardening, high early strength, good suspension property at high WIC ratio and low cost. Meanwhile, the properties and hydration mechanism of the material were analyzed by using XRD, DTA-TG and SEM. The hydrated products of new type of high water content material are Ba-bearing ettringite, BaSO₄, aluminum gel and C-S-H gel.

Keywords

Ba-bearing sulphoaluminate cement / high water content material / filling material / BaO / barium industrial waste residue

References

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